UpcomingMammoth Lakes, CAOct 2, 2026 to Oct 6, 2026Starts In108d 6h

The Mammoth 200

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A 200-mile loop through the Eastern Sierra circumnavigating a 760,000-year-old caldera. 108-hour cutoff.

Friday, October 2, 2026 to Tuesday, October 6, 2026

Location

Mammoth Lakes, CA

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